Alarm device.



No. asmms,

' Patented Dec; 3|, |901. W. H. CLARK.

ALARM DEVICE.`r

(Application led Aug. 7, 1901.)

2 Sheets-Sheet l.

(No Model.)

WIT/758858 Nu. 690,05. Patented Dec. 3|, |901.

W. H. CLARK ALARM DEVICE.

(Application filed Aug. '7, 1201.!

A2 Sheets-Sheet 2. y

(No Model.)

WIT/VESSEL? me Noam Farms wfmoraum., wAsmNmcN. D. c.

lliviTnD STATES PATENT riricn.A

WILLIAM Il. CLARK, OF JERSEY CITY, NEV JERSEY.

ALARM DEVICE.

SPECIFICATION forming part of Letters Patent No. 690,015, dated December 31, 1901.

Application led August 7,1901. Serial No. 71,154. (No model.)

To @ZZ whom it may concern.-

Be it known that I, WILLIAM H. CLARK, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Alarm Devices, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

The object of this invention is to provide an improved alarm device which is designed to be used in connection with the drip-pan of a refrigerator and which may also be used as a burglar-alarm in connection with a door; and the invention consists in an alarm device adapted to be connected with the side of a drip-pan and to be operated by an arm connected therewith and extending into the drippan and provided with a iloat, said alarm device being also adapted to be secured to the frame of a door and to be operated by an arm connected therewith, which arm comes in contact with the door when the latter is opened, said alarm device being constructed as hereinafter described and claimed.

In the accompanying drawings, forming part of this specification, in which like letters of reference designate corresponding parts in the several views, Figure l is a plan view of a part of a drip-pan with my improved alarm device connected therewith, the cover of the alarm device being removed. Fig. 2 is a lon` gitudinal section through the casing of the alarm device and showing the cover in position. Fig. 3 is a View showing my improved alarm device as applied to a door, and Fig. 4 a section or detail showing part of the drippan shown in Fig. l and showing the connection of the float-arm.

In the drawings forming part of this specification I have shown at 5 a drip-pan such as is usually employed beneath a refrigerator, and in the practice of my invention I provide an alarm device which is designed, among other things, to tell when the drip-pan is su fliciently full to need emptying.

My improved alarm device comprises a box or casing 6, in which is placed a bell or gong 7, which is connected with the bottom thereof and adjacent to which is a clockwork and escapement mechanism for operating the bell or gong and sounding an alarm. This clockwork and escapement mechanism comprises a suitable frame in which is mounted a vertical shaft 8, on the lower end of which is a strong spring 9, one end of which is secured to the frame at l0 and the other end of which is secured to the shaft 8in the usual manner. Mounted on the shaft 8 is a gear-wheel l1, in which said shaft 8 is free to turn, and said shaft 8 is provided with a ratchet 12, rigidly connected therewith, and pivotally connected with the top of the Wheel l2 is a pau/113, operated by a spring 14., secured to said wheel, and the pawl 13 operates in connection with the ratchet 12, and by turning the shaft 8 to the left the spring 9 will be wound up in the usual manner, the wheel 1.1 remaining stationary during this operation. Between the shaft 8 and the bell or gong 7 is a vertically-arranged shaft 15, provided with a pinion 16, which operates in connection with the gear-Wheel 11, and above the pinion 16 the shaft 15 is provided with a ratchet-wheel 17, adjacent to which is supported an escapement 18, the

separate arms of which are shown at 19 in Fig. 1 and operate in connection with the ratchet-Wheel 17. The escapement 18 is connected with a vertically-arranged rock-shaft 20, and this shaft is provided with astop-rod 21, which extends transversely across the ratchet-wheel 17, and said shaft 2O is also provided With a hammer-arm 22, which carries a hammer 23, which operates in connection with the bell or gong 7.

The box or casing 6 of the alarm device is provided at one side with hooks 24, by which it may be connected with the top ofthe drip-pan, and at the bottom with a slide 25, which holds the alarm device in proper position while bearing on the side of the pau; but the connection of the alarm device with the pan may be made in any desired manner. Secured to the inside of the box or casing adjacent to the pan and preferably centrally thereof is a plate 26, having an inwardly-directed member 27, to which is pivoted, by means of a screw 28, a dog or lever 29, with the upper end of which is connected a tubular sleeve .'30, with which is detachably connected an arm. 31. The sleeve 30 is detachably connected with a rod 32, which forms a part of the dog or lever 29, by a screw 33, and the arm 3l is secured in the sleeve 30 by means of set-screw 34, all of which is clearly shown in Fig. 4 and also in Figs. l and 2. The dog or lever 29 consists of a rod 32 and a plate 35, connected therewith, and the plate 35 projects inwardly in the direction of the escapement 1S and in its innermost position, as

shown vin Fig. 4, comes in contact with the stop-rod 2l, which is connected with the escapement-shaft 20.

The dog or lever 29 in the position of the parts shown in Fig. 4 prevents the operation of the escapement and also the operation ot the alarm device. When the water in the pan 5 raises the float 36, connected with the arm 3l, the dog or lever29 moves backwardly into the position shown in dotted lines in Fig. 4, and this releases the stop-rod 2l, connected with the escapement 20, and the mechanism of the alarm device is at once put into operation by the spring 9, and the gong or bell is sounded until the spring 9 is run down, unless the said alarm mechanism is thrown out of operation, as hereinafter described.

The top of the casing of the alarm device is provided with a crank 37, which is connected with said top of said casing by a pin 38, which passes through said top, and connected with the lower end thereof is an angular arm 39, which is also adapted to be thrown into connection with the stop-rod 2l, connected with the escapement-shaft 20, and the alarm device may be stopped at any time by turning the crank 37 so as to bring the arms 39 and 22 into contact. The top of the box or casing is also provided with two vertical pins 40, between which the crank 37 works, and when the crank is in connection with one of these pins the alarm device will operate, and when it is in connection with the other pin the alarm device will not operate. One end of the box or casing is also provided with a plate 4l, which is hinged to the bottom of thebox or casing at 42 and which is held in an upright position by a small spring-catch 43, and mounted in the bottom portion of said end of said box or casing is a movable plug 44, which is held in its innermost position by a spring 45, and when the alarm device is entirely run down the outer coil of the spring 9 will strike the inner end of the plug 44 and force said plug outwardly and the plate 41 will be detached from the spring-catch 43 and will drop downwardly, and thus give visible evidence that the alarm device has run down.

The shaft 8 may be wound, or is wound, by a key 46, and may be thus wound whenever necessary, and the rod or arm 33 of the dog o r lever 29 passes upwardly through the box or casing and through a plate 47, secured thereto, and the holes in the top of the box or casing and in said plate are sufciently large to permit the rod or arm 32 to work freely therein.

In Fig. 3 I have shown my alarm device applied to a door in such manner as to be operated when the door is opened, and for this purpose I secure the box or casing 6 of the alarm device to the trame 48 of a door 49. The construction of the alarm device when used for this purpose is exactly the same as hereinbefore described, with the exception that the arm 3l, which operates the dog or lever 29 and which is designated in Fig. 3 by the reference character 31a, is substantially straight and a supplemental arm 50 is pivoted thereto at 5l. When the arm 50 hangs in the position shown in Fig. 3, if the door be opened the said arm will be forced upwardly. by the door and the alarm will be operatedand will continue in operation until it is put out of operation by an attendant or by a person from within the house, and for this purpose I connect with the top of the alarm-casing at 52 a spring-arm 53, which when in the position shown in Fig. 3 will bear on the sleeve 30 and hold said sleeve in any position in which it may be placed by the opening of the door or by any other agency, and the springarm 53 is held against the sleeve 30 by a pin 54,and when it is desired that the alarm should not be operated by the door the supplemental arm 50 is turned up into the position shown in dotted lines in Fig. 3A at 55.

The frame of the clockwork and the springwork mechanism of the alarm device consists of top and bottom plates 56 and 57 and posts 5S, 59, and 60; but the exact form and construction ot this frame are immaterial,all that is necessary in this connection being to provide any suitable support for the operative mechanism, and instead of the casing 6 `any suitable support or frame may be employed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. An alarm device comprising a casing, a spring-operated mechanism mounted therein and provided with an escapement, a bell or gong mounted in said casing, a hammerarm connected with said escapement and operating in connection with said bell or gong, a stop device connected with said escapement, a pivotally-supported dog or lever operating in connection with the stop device and provided with a member which passes loosely through the top of the box or casing and a detachable arm connected with said lastnamed member and adapted to operate said dog or lever, said box or casing being also provided at one end with a hinged plate normally held in the raised position anda device operated by the spring mechanism Within the casing for releasing said plate, substantially as shown and described.

` 2. An alarm device comprising a casi-ng, a spring-operated mechanism mounted therein and provided with an escapement, a bell or gong mounted in said casing, a ham-merarm connected with said escapement and operating in connection with said bell or gong, a stop device connected with said escapement, a pivotally-supported dog or lever operating in connection with the stop device and provided with a member which passes IOO IIC

sedette loosely through the top of the box or casing, a detachable arm connected with said lastnamed member and adapted to operate said dog or lever-,and a han d-operated device passing through the top of the casing and also adapted to engage said stop device, substaniially as shown and described.

3. An alarm device comprising a frame or casing, a spring-operated mechanism mounted therein and provided with a rock-shaft and an escapement connected therewith, a ratchet-Wheel in connection with which said escapement operates, a bell or gong supported in said frame or casing, a hammer-arm connected with the rock-shaft and operating in connection with said bell or gong, a stop device connected with said rock-shaft and operating to control the escapement, a pivoted dog or lever operating in connection With the stop device, an arm connected with said dog or lever and passing loosely through the top of the frame or casing and provided at its outer end with a sleeve and a supplemental arm connected with said sleeve and adapted to operate to throw the dog or lever out of engagementwith the stop device, substantially as shown and described.

4. An alarm device comprising a frame or casing, a spring-operated mechanism mounted therein and provided with a rock-shaft and an escapement connected therewith,a ratchet- Wheel in connection With which said escapement operates, a bell or gong supported in said frame or casing, a hammer-arm connected With the rock-shaft and operating in connection with said bell or gong, a stop device connected with said rock-shaft and operating to control the escapement, a pivoted dog or lever operating in connection with the stop device, an arm connected with said dog or lever and extending through the top of the frame or casing and provided at its outer end with a sleeve and a supplemental arm connected with said sleeve and adapted to operate to throT the dog or lever out of engagement With the stop device, said supplemental arm being jointed and the free end thereof being adapted to be turned at an angle to the end which is connected to said sleeve, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have'signed my name, in presence of the subscribing Witnesses, this 5th day of August, 1901.

WM. H. CLARK.

Witnesses:

F. A. STEWART, F. F. TELLER. 

